21559136

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 44448768

約数和(自身を除く): 22889632

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 103, 124, 206, 211, 248, 412, 422, 496, 824, 844, 992, 1648, 1688, 3193, 3296, 3376, 6386, 6541, 6752, 12772, 13082, 21733, 25544, 26164, 43466, 51088, 52328, 86932, 102176, 104656, 173864, 209312, 347728, 673723, 695456, 1347446, 2694892, 5389784, 10779568, 21559136]

約数ペア:

[(1, 21559136), (2, 10779568), (4, 5389784), (8, 2694892), (16, 1347446), (31, 695456), (32, 673723), (62, 347728), (103, 209312), (124, 173864), (206, 104656), (211, 102176), (248, 86932), (412, 52328), (422, 51088), (496, 43466), (824, 26164), (844, 25544), (992, 21733), (1648, 13082), (1688, 12772), (3193, 6752), (3296, 6541), (3376, 6386)]